CN211798022U - Closed needle-puncture-preventing remaining needle - Google Patents
Closed needle-puncture-preventing remaining needle Download PDFInfo
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- CN211798022U CN211798022U CN201922354745.9U CN201922354745U CN211798022U CN 211798022 U CN211798022 U CN 211798022U CN 201922354745 U CN201922354745 U CN 201922354745U CN 211798022 U CN211798022 U CN 211798022U
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- catheter
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Abstract
The utility model belongs to the technical field of medical instrument, specifically disclose a needle wound indwelling needle is prevented stinging by closed, including tubing assembly, protector subassembly and needle tubing assembly, tubing assembly includes pipe, pipe seat and isolation stopper, the pipe connect in the isolation stopper just the pipe with the isolation stopper set up in the pipe seat, the needle tubing assembly includes needle tubing and needle file, the needle tubing with the needle file is connected, the protector device includes protective housing, V type shell fragment and O type card set up in the protective housing, V type shell fragment is located one side of needle tubing; the utility model discloses can prevent that the syringe needle after the use from stabbing medical personnel and stopping the emergence of blood pollution phenomenon, compare in prior art, the utility model discloses the operation is more simple and convenient and protect more effectively.
Description
Technical Field
The utility model belongs to the technical field of medical instrument's technique and specifically relates to a needle is hindered to closed needle-prick prevention and is kept somewhere needle.
Background
In order to reduce pain and fear of patients caused by repeated venipuncture, facilitate clinical medication and reduce workload of medical care personnel, the indwelling needle is widely used clinically. However, after the traditional indwelling needle is used, the needle head is polluted by blood of a patient, medical staff are easy to stab by the needle head to infect diseases when placing and discarding the needle head, and meanwhile, the discarded needle head is exposed in the air, so that environmental pollution and potential safety hazard exist. The existing indwelling needle protection device for preventing needle stick injury has the disadvantages of complex structure, higher cost, more accessories and complex assembly process, and most of the existing indwelling needle protection devices cannot be used with a common Y-shaped catheter seat.
Therefore, how to provide a simple structure, low cost and simple assembly process is a technical problem which needs to be solved by the technical personnel in the field at present.
Disclosure of Invention
To the problem in the prior art, the utility model aims at providing a needle is hindered to needle-prick to keep somewhere to closed.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a closed needle-prick-proof indwelling needle comprises a catheter component and a needle tube component, wherein the catheter component comprises a catheter, a catheter seat and an isolating plug, the catheter is arranged at one end of the catheter seat and communicated with the catheter seat, the isolating plug is arranged at the other end of the catheter seat to block the end, a transfusion port communicated with the catheter is arranged on the side surface of the catheter seat, the needle tube component comprises a needle tube and a needle seat, the needle tube is connected with the needle seat, and the needle tube component also comprises a protector component;
the protector component comprises a protective shell, a V-shaped elastic sheet and an O-shaped card, one end of the protective shell is provided with a V-shaped elastic sheet positioning groove for mounting the V-shaped elastic sheet and is connected with the catheter seat, the other end of the protective shell is provided with an O-shaped card positioning groove for placing the O-shaped card, and the protective shell is also internally provided with a needle tube hole penetrating through the protective shell, the first channel is communicated with the V-shaped elastic sheet positioning groove and the O-shaped card positioning groove, the needle tube sequentially passes through the needle tube hole, the isolating plug and the catheter seat to enter the catheter, when the needle tube is withdrawn, the needle head of the needle tube is positioned between the O-shaped clamping sheet and the V-shaped elastic sheet, the V-shaped elastic sheet rebounds to cut off the needle tube hole, a flattening boss is arranged on the side surface of the needle head of the needle tube, the inner diameter of the O-shaped clamping piece is larger than the outer diameter of the needle tube and smaller than the outer diameter of the flattening boss.
Furthermore, the V-shaped elastic sheet is made of stainless steel with the thickness of 0.12-0.2 mm.
Furthermore, the opening angle of the V-shaped elastic sheet is 45-55 degrees.
Furthermore, a boss is arranged in a V-shaped elastic sheet positioning groove of the protective shell to fix the opening direction of the V-shaped elastic sheet.
Further, the protective shell is inserted into the catheter base to achieve connection, a protective shell boss is arranged on the outer wall of the connecting end of the protective shell and the catheter base, a catheter base boss is arranged in the catheter base, and when the protective shell is inserted into the catheter base, the protective shell boss is located between the catheter base boss and the isolation plug.
Compared with the prior art, the utility model provides a pair of needle stick wound is prevented to closed is kept somewhere needle structure unusual, convenient operation, inserts patient's back with this device, and acupuncture accomplishes the back promptly, extracts needle tube, the syringe needle of needle tube is extracting back between O type card and the V type shell fragment, V type shell fragment loses the support of needle tube can kick-back and cut off the needle tube hole, and block the syringe needle is followed the puncture is worn out to stab the human body in the needle tube hole, avoids the effectual blood source nature infection that avoids the syringe needle to stab the human body and cause, and because flatten the boss quilt O type card blocks, avoids the needle tube is followed extract in the protective housing and cause blood to flow and cause the pollution, protection operating personnel and patient's safety can reduction in production cost again.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic overall sectional view of the present invention.
Fig. 2 is a schematic view of the catheter assembly of the present invention.
Fig. 3 is a cross-sectional view of the protector assembly of the present invention.
Figure 4 is a schematic view of the boss of the catheter holder of the present invention.
Fig. 5 is a partial schematic view of the protective housing of the present invention.
Figure 6 is a schematic view of the needle cannula assembly of the present invention.
FIG. 7 is a schematic view of the anti-needling principle after needle withdrawal of the present invention.
Figure 8 is a schematic view of the needle cannula assembly of the present invention.
Fig. 9 is a schematic diagram of the push pin protector of the present invention.
In the figure: catheter subassembly 1, pipe 1.1, pipe seat 1.2, isolating plug 1.3, protector subassembly 2, protective housing 2.1, V type shell fragment 2.2, O type steel sheet 2.3, needle tubing subassembly 3, needle tubing 3.1, needle file 3.2, pipe seat boss 1.2.1, pipe seat location boss 1.2.2, V type shell fragment constant head tank 2.1.1, protective housing boss 2.1.2, O type card constant head tank 2.1.3, needle tubing hole 2.1.4, boss 2.1.5, afterbody chamfer 3.1.1, the needle tubing flattens boss 3.1.2.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-9, a closed needle-stick-injury-preventing indwelling needle comprises a catheter component 1, a protector component 2 and a needle tube component 3, wherein the catheter component 1 comprises a catheter 1.1, a catheter holder 1.2 and an isolating plug 1.3, the catheter 1.1 is connected to the isolating plug 1.3, the catheter 1.1 and the isolating plug 1.3 are arranged in the catheter holder 1.2, the needle tube component 3 comprises a needle tube 3.1 and a needle holder 3.2, the needle tube 3.1 is connected with the needle holder 3.2, a tail chamfer 3.1.1 is arranged on the needle holder 3.2 so as to facilitate inserting and installing the needle tube 3.1, the protector device 2 comprises a protective shell 2.1, a V-shaped elastic piece 2.2 and an O-shaped elastic piece 2.3, the V-shaped elastic piece 2.2 and the O-shaped elastic piece 2.3 are arranged in the protective shell 2.1, the center of the O-shaped elastic piece 2.3 is a hollow circle, the V-shaped elastic piece 2.2 is arranged on one side of the needle tube 3.1, and the V-shaped elastic piece is made of stainless steel with a thickness of, the opening angle of the V-shaped elastic piece 2.2 is 45-55 degrees, the protective shell 2.1 comprises a V-shaped elastic piece positioning groove 2.1.1, a protective shell boss 2.1.2, an O-shaped card positioning groove 2.1.3, a needle tube hole 2.1.4 and a boss 2.1.5, the V-shaped elastic piece positioning groove 2.1.1 and the boss 2.1.5 have the function of fixing the opening direction of the V-shaped elastic piece 2.2, the protective shell boss 2.1.2 has the function of fixing the boss 1.2.1 of the catheter seat, the needle tube hole 2.1.4 is a needle tube guide groove, and the inner diameter of the O-shaped card 2.3 is larger than the outer diameter of the needle tube 3.1 and smaller than the outer diameter of the needle tube 3.1 at the flattened needle tube boss 3.1.2.
Preferably, the needle hub 3.2 is provided with an inner lumen to enable sleeving on one end of the catheter hub 1.2, and the outer wall of the catheter hub 1.2 is provided with a catheter hub positioning boss 1.2.2 to limit the depth of sleeving of the needle hub 3.2.
The following detailed description is made with reference to the accompanying drawings.
Example 1: as shown in fig. 8-9, after the puncture is successful, the needle tube 3.1 is pulled out, when the tip of the needle tube 3.1 retreats to the end of the V-shaped elastic piece, the opening of the V-shaped elastic piece 2.2 begins to expand, and the opening is automatically changed from the closed state to 45-55 degrees, when the needle tube flattening boss 3.1.2 retreats to the O-shaped card 2.3, the needle tube is automatically clamped by the O-shaped card 2.3, the tip of the needle tube 3.1 is fixed in the protective shell 2.1, i.e. the tip of the needle tube 3.1 is limited between the V-shaped elastic piece 2.2 and the O-shaped card 2.3, the needle tube 3.1 can be completely isolated in the protective shell 2.1, and therefore, the exposure of the contaminated needle tip.
Example 2: the O type card sets up on O type card constant head tank 2.1.3, can inject O type card 3.2 in the fixed position of protective housing 2.1, and O type card 2.3 internal diameter is greater than the needle tubing external diameter and is less than the needle tubing and flattens the external diameter of boss 3.1.2 department, can restrict the relative movement of needle tubing 3.1 needle point portion position in protective housing 2.1 effectively.
Example 3: protective housing 2.1 is interference fit state with pipe seat 1.2, and protective housing boss 2.1.2 that protective housing 2.1 epitaxy set up has certain resistance effect, can prevent that needle tubing 3.1 and V type shell fragment 2.2 from driving protector subassembly 2 synchronous displacement because of frictional force is too big.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A closed needle-prick-proof indwelling needle comprises a catheter component and a needle tube component, wherein the catheter component comprises a catheter, a catheter seat and an isolating plug, the catheter is arranged at one end of the catheter seat and communicated with the catheter seat, the isolating plug is arranged at the other end of the catheter seat to block the end, a transfusion port communicated with the catheter is arranged on the side surface of the catheter seat, the needle tube component comprises a needle tube and a needle seat, and the needle tube is connected with the needle seat;
the protector component comprises a protective shell, a V-shaped elastic sheet and an O-shaped card, one end of the protective shell is provided with a V-shaped elastic sheet positioning groove for mounting the V-shaped elastic sheet and is connected with the catheter seat, the other end of the protective shell is provided with an O-shaped card positioning groove for placing the O-shaped card, and the protective shell is also internally provided with a needle tube hole penetrating through the protective shell, the first channel is communicated with the V-shaped elastic sheet positioning groove and the O-shaped card positioning groove, the needle tube sequentially passes through the needle tube hole, the isolating plug and the catheter seat to enter the catheter, when the needle tube is withdrawn, the needle head of the needle tube is positioned between the O-shaped clamping sheet and the V-shaped elastic sheet, the V-shaped elastic sheet rebounds to cut off the needle tube hole, a flattening boss is arranged on the side surface of the needle head of the needle tube, the inner diameter of the O-shaped clamping piece is larger than the outer diameter of the needle tube and smaller than the outer diameter of the flattening boss.
2. The hermetic needle-stick-resistant indwelling needle according to claim 1, wherein the V-shaped resilient piece is made of stainless steel with a thickness of 0.12-0.2 mm.
3. The hermetic needle-stick-resistant indwelling needle according to claim 2, wherein the opening angle of the V-shaped shrapnel is 45-55 degrees.
4. The hermetic needle-stick-resistant indwelling needle according to claim 1, wherein a protrusion is provided in the V-shaped spring positioning groove of the protective case to fix the opening direction of the V-shaped spring.
5. The hermetic indwelling needle for preventing needle stick injury according to claim 1, wherein the protective casing is inserted into the catheter base to be connected, and a protective casing boss is provided on an outer wall of a connecting end of the protective casing and the catheter base, and a catheter base boss is provided in the catheter base, and when the protective casing is inserted into the catheter base, the protective casing boss is located between the catheter base boss and the isolating plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922354745.9U CN211798022U (en) | 2019-12-25 | 2019-12-25 | Closed needle-puncture-preventing remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922354745.9U CN211798022U (en) | 2019-12-25 | 2019-12-25 | Closed needle-puncture-preventing remaining needle |
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| Publication Number | Publication Date |
|---|---|
| CN211798022U true CN211798022U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922354745.9U Active CN211798022U (en) | 2019-12-25 | 2019-12-25 | Closed needle-puncture-preventing remaining needle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899047A (en) * | 2023-08-04 | 2023-10-20 | 江苏采纳医疗科技有限公司 | Remaining needle |
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2019
- 2019-12-25 CN CN201922354745.9U patent/CN211798022U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899047A (en) * | 2023-08-04 | 2023-10-20 | 江苏采纳医疗科技有限公司 | Remaining needle |
| CN116899047B (en) * | 2023-08-04 | 2024-04-26 | 江苏采纳医疗科技有限公司 | Remaining needle |
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